45BYMP Y-Body Ball Check Valve Applications

The 45BYMP ball check valve operates at a wide range of pressures and flow rates. Because the sealing check ball moves completely out of the process flow when open, the valve offer low pressure reduction and handles viscous liquids or liquids containing solid particles easily. Alfa Laval’s 45BYMP is authorized to carry the 3-A symbol.

Working Principle

When liquid under normal pressure enters the inlet of the 45BYMP check valve, an elastomeric ball is pushed upward into the “Y” branch (lower pressure area) of the valve. When the liquid flow stops, the pressure within the valve equalizes, and the ball returns from the “Y” branch of the valve and rests itself against the smaller diameter of the valve near its inlet. Should a reverse flow situation occur, the opposing pressure of the fluid will seat the ball firmly against the inlet of the valve, preventing reverse flow. The valve operates in both a vertical or horizontal orientation.

Standard Design

The valve consists of a single-piece, stainless steel body with an elastomeric ball (see materials table for options). The “Y” branch of the valve maintains a Tri-Clamp^® connection along with an associated Tri-Clamp, end-cap, and NBR gasket. The valve is polished internally and externally to meet or exceed 3-A sanitary standards.